Shift Solenoid Valve State and Gear Ratio
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
| Gear | Shift SOL 1 | Shift SOL 2 | 1-2-3-4 CL PC SOL 5 N.L. | 2-6 CL PC SOL 4 N.L. | 3-5 REV CL PC SOL 2 N.H. | LOW REV 4-5-6 CL PC SOL 3 N.H. | 6L45 6L50Gear Ratio | 6L80 6L90Gear Ratio |
|---|---|---|---|---|---|---|---|---|
| Park | ON | ON | OFF | OFF | OFF | ON | - | - |
| Reverse | ON | OFF | OFF | OFF | ON | ON | 3.200 | 3.064 |
| Neutral | ON | ON | OFF | OFF | OFF | ON | - | - |
| 1st Braking | ON | ON | ON | OFF | OFF | ON | 4.065 | 4.027 |
| 1st | OFF | ON | ON | OFF | OFF | OFF | 4.065 | 4.027 |
| 2nd | OFF | ON | ON | ON | OFF | OFF | 2.371 | 2.364 |
| 3rd | OFF | ON | ON | OFF | ON | OFF | 1.551 | 1.532 |
| 4th | OFF | ON | ON | OFF | OFF | ON | 1.157 | 1.152 |
| 5th | OFF | ON | OFF | OFF | ON | ON | 0.853 | 0.852 |
| 6th | OFF | ON | OFF | ON | OFF | ON | 0.674 | 0.667 |
| For shift solenoids 1 and 2, "ON" = Solenoid Energized (Pressurized) "OFF" = Solenoid De-energized (No Pressure). For pressure control solenoids, "ON" = Pressurized, "OFF" = No Pressure |
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